Hello!

I've set up the following audiophile equipment:

Raspyfi1.0 + Exposure DAC 2010s2 + NAS Synology 212j.

Features of the Exposure DAC are:
3 coax inputs 32KHz to 192KHz, 16 to 24 bits.
2 optical inputs 32KHz to 96 KHz, 16 to 24 bits
1 USB input 96KHz 24 bits FIXED.

The chipset employed seems to be Wolfson 8742.

The point is that, once the DAC is connected to the raspberry and I try to play FLAC files from the NAS (the raspberry is connected via rj-45 to a 1gb-switch that interconnects with the NAS and other devices at the LAN) it starts playing but with many small cracks that make the listening experience quite annoying.

I have modified the mpd.conf with nrpacks=1 parameter, I have also edited my etc/auto.nas to be access directly to the shared folder and I have changed the rsize and wsize to 32768, but yet the cracks are there. I have tried the different kernel profiles and nothing changes. What really worries me is that it happens both with files stored in the NAS and with radio stations ([email protected], DeepMix.ru) so I'm starting to think that it could be something related with the DAC instead of an internal configuration of the raspberry?

The last thing I still have to try is using wifi connection instead of rj-45, which I have read somewhere that it kind of introduces "noise" in the bitstream, right?

Please, some help is needed. I spent a step up of money in Exposure DAC considering that it was worth and now I realize that it cant manage working with raspyfi…

Regards and thanks!

Thanks for the answer!

Right now I have only 16bit, 44,1 KHz FLAC files on the NAS. Playing them, cat command reports this:

access: RW_INTERLEAVED
format: S24_3LE
subformat: STD
channels: 2
rate: 96000 (96000/1)
period_size: 12000
buffer_size: 48000

Playing the 128k stream of [email protected] webradio – it displays 24bit, 44.1KHz and 128kbps at the playback display of raspyfiGUI, it also reports:

access: RW_INTERLEAVED
format: S24_3LE
subformat: STD
channels: 2
rate: 96000 (96000/1)
period_size: 12000
buffer_size: 48000

Does it shed any light? I'm still in 2-week period for changing the DAC at the store…